Stack-Based Buffer Overflow in Comfast CF-N1-S Web Management Interface
CVE-2026-94003

10CRITICAL

Key Information:

Vendor

Comfast

Status
Cf-n1-s
Vendor
CVE Published:
20 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-94003?

A stack-based buffer overflow vulnerability has been identified in the Comfast CF-N1-S 2.6.0.1, specifically within the function get_css_path_from_uri located in the /cgi-bin/mbox-config file of its Web Management Interface. This vulnerability may allow attackers to execute remote exploits, potentially leading to unauthorized access or system compromise. The exploit for this vulnerability has been publicly disclosed, raising significant concerns regarding the security of the affected product.

Affected Version(s)

CF-N1-S 2.6.0.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-94003 - Proof of Concept

References

https://vuldb.com/vuln/407952
vdb-entrytechnical-description
https://vuldb.com/vuln/407952/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-94003
third-party-advisory

CVSS V4

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

010hex (VulDB User)
.